Counties in Connecticut by households

Capitol Planning Region had the highest households of 9 counties in 2023, at 389,086. Northeastern Connecticut Planning Region had the lowest, at 39,155. The median was 118,335 and the figure for Connecticut was 1.42 million. Source: the U.S. Census Bureau.

Highest389,086Capitol Planning Region

Lowest39,155Northeastern Connecticut Planning Region

Median118,3359 counties

Connecticut1,420,170History

Map of counties, 2023

Under 63K
63K to 120K
120K to 170K
170K to 230K
230K and over

count, 2023. Source: U.S. Census Bureau, American Community Survey 5-year estimates, table B25003: occupied housing units (households). Boundaries: U.S. Census Bureau cartographic boundary files.

All counties, 2023

count. Source: U.S. Census Bureau, American Community Survey 5-year estimates, table B25003: occupied housing units (households). Retrieved 2026-10-12.

Full ranking

Rank	Counties	2023 count	Change on 2022
1	Capitol Planning Region	389,086	+0.7%
2	Western Connecticut Planning Region	232,279	+0.8%
3	South Central Connecticut Planning Region	227,739	+0.7%
4	Naugatuck Valley Planning Region	178,340	+0.4%
5	Greater Bridgeport Planning Region	118,335	+0.7%
6	Southeastern Connecticut Planning Region	114,577	+0.7%
7	Lower Connecticut River Valley Planning Region	73,624	+0.7%
8	Northwest Hills Planning Region	47,035	+2.3%
9	Northeastern Connecticut Planning Region	39,155	+1.5%

Other periods

2024
2023
2022

About this ranking

Number of households, which equals the number of occupied housing units. United States: American Community Survey five-year estimate, where the period shown is the last year of the five-year span.

People living in group quarters, such as college dormitories, nursing homes and prisons, are not in households.

Every value in the ranking comes from the same publisher and the same period, so the counties are compared on one definition. Equal values share a rank.

How to cite

U.S. Census Bureau. American Community Survey 5-year estimates, table B25003: occupied housing units (households). https://www2.census.gov/programs-surveys/acs/summary_file/2023/table-based-SF/data/5YRData/acsdt5y2023-b25003.dat. Retrieved 2026-10-12.

Citation styles

The publisher is the author. Invokely is named only as the place the figures were read, where a style asks for it.

APA 7

U.S. Census Bureau. (2026). American Community Survey 5-year estimates, table B25003: occupied housing units (households) (Counties in Connecticut by households, 2023) [Data set]. Retrieved October 12, 2026, from https://www2.census.gov/programs-surveys/acs/summary_file/2023/table-based-SF/data/5YRData/acsdt5y2023-b25003.dat

MLA 9

American Community Survey 5-year estimates, table B25003: occupied housing units (households), Counties in Connecticut by households, 2023. U.S. Census Bureau, 29 Jan. 2026, https://www2.census.gov/programs-surveys/acs/summary_file/2023/table-based-SF/data/5YRData/acsdt5y2023-b25003.dat. Invokely, https://invokely.ai/rankings/households/connecticut-counties?period=2023. Accessed 12 Oct. 2026.

Chicago (author-date)

U.S. Census Bureau. 2026. American Community Survey 5-year estimates, table B25003: occupied housing units (households). Counties in Connecticut by households, 2023. Dataset. Accessed October 12, 2026. https://www2.census.gov/programs-surveys/acs/summary_file/2023/table-based-SF/data/5YRData/acsdt5y2023-b25003.dat. Also distributed by Invokely, https://invokely.ai/rankings/households/connecticut-counties?period=2023.

Harvard

U.S. Census Bureau (2026) American Community Survey 5-year estimates, table B25003: occupied housing units (households), Counties in Connecticut by households, 2023 [Dataset]. Available at: https://www2.census.gov/programs-surveys/acs/summary_file/2023/table-based-SF/data/5YRData/acsdt5y2023-b25003.dat, via Invokely: https://invokely.ai/rankings/households/connecticut-counties?period=2023 (Accessed: 12 October 2026).

BibTeX

@misc{census_counties_in_connecticut_by_2023,
  author = {{U.S. Census Bureau}},
  title = {{American Community Survey 5-year estimates, table B25003: occupied housing units (households): Counties in Connecticut by households, 2023}},
  year = {2026},
  howpublished = {Data set},
  url = {https://www2.census.gov/programs-surveys/acs/summary_file/2023/table-based-SF/data/5YRData/acsdt5y2023-b25003.dat},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/rankings/households/connecticut-counties?period=2023. Publisher attribution: U.S. Census Bureau. American Community Survey 5-year estimates, table B25003: occupied housing units (households). https://www2.census.gov/programs-surveys/acs/summary\_file/2023/table-based-SF/data/5YRData/acsdt5y2023-b25003.dat. Retrieved 2026-10-12.},
}

RIS

TY  - DATA
AU  - U.S. Census Bureau
TI  - American Community Survey 5-year estimates, table B25003: occupied housing units (households): Counties in Connecticut by households, 2023
PY  - 2026
DA  - 2026/01/29
PB  - U.S. Census Bureau
DB  - Invokely
UR  - https://www2.census.gov/programs-surveys/acs/summary_file/2023/table-based-SF/data/5YRData/acsdt5y2023-b25003.dat
L2  - https://invokely.ai/rankings/households/connecticut-counties?period=2023
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/households/connecticut-counties?period=2023.
N1  - Publisher attribution: U.S. Census Bureau. American Community Survey 5-year estimates, table B25003: occupied housing units (households). https://www2.census.gov/programs-surveys/acs/summary_file/2023/table-based-SF/data/5YRData/acsdt5y2023-b25003.dat. Retrieved 2026-10-12.
ER  -

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Questions

Which county has the highest households?

Capitol Planning Region, with 389,086 in 2023, according to the U.S. Census Bureau.

Which county has the lowest households?

Northeastern Connecticut Planning Region, with 39,155 in 2023.

Where does this ranking come from?

Every value comes from one source and one period, so the places are comparable: U.S. Census Bureau, American Community Survey 5-year estimates, table B25003: occupied housing units (households). Retrieved 2026-10-12.